William Baker, MD
Internal Medicine Physician · Charlotte, NC
William Baker, MD is an internal medicine physician with a practice address in Charlotte, North Carolina, and NPI 1932589660, issued on Jun 8, 2015. Check the license on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Baker
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 4525 Cameron Valley Pkwy, Charlotte, NC 28211
- Phone
- (704) 468-8873
- Enumerated
- Jun 8, 2015
- Entity
- Type 1 · individual
Also registered at 4525 Cameron Valley Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,513 Medicare Part D claims for 349 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxychloroquine Sulfate290 claims
- Methotrexate263 claims
- Prednisone204 claims
- Allopurinol160 claims
- Humira(Cf) Pen70 claims
- Alendronate Sodium46 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The Medicare quality score for 2023: 95.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Carolinas Physicians Network IncCharlotte, NC
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
713 internal medicine physician records list a Charlotte practice address
They are 713 of the 23,603 NPPES records with a Charlotte practice address, and 4,922 internal medicine physician records in North Carolina.
All 713 in Charlotte → All 4,922 in North Carolina → Every provider in Charlotte →
Other internal medicine physician records in North Carolina
- Ana Abaroa-Salvatierra, M.D.Pollocksville, NC1598101750
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- Firas Abdulmajeed, M.D.Winston Salem, NC1427358043
- Erlinda Abella, MDSalisbury, NC1649251505
- Bisrat AberaFayetteville, NC1871453886
- David Abernathy, M. D.Morganton, NC1265497366
- Hiba Abouassi, M.D.Durham, NC1063617470
- Maroun Aboutayeh, D.O.Asheville, NC1447757992
Common questions
What is William Baker, MD's NPI number?
William Baker, MD's National Provider Identifier (NPI) is 1932589660, issued on Jun 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Baker, MD located?
The NPPES record lists a practice address at 4525 Cameron Valley Pkwy, Charlotte, NC, 28211. Phone: (704) 468-8873. Providers update this record themselves, so call before visiting.
How can I verify William Baker, MD's license?
Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Baker, MD prescribe under Medicare Part D?
In 2024, William Baker, MD had 1,513 Medicare Part D claims for 349 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is William Baker, MD's Medicare quality score?
The 2023 MIPS final score is 95.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.